CN2631289Y - Thermal lunch boxes - Google Patents
Thermal lunch boxes Download PDFInfo
- Publication number
- CN2631289Y CN2631289Y CN 03265817 CN03265817U CN2631289Y CN 2631289 Y CN2631289 Y CN 2631289Y CN 03265817 CN03265817 CN 03265817 CN 03265817 U CN03265817 U CN 03265817U CN 2631289 Y CN2631289 Y CN 2631289Y
- Authority
- CN
- China
- Prior art keywords
- heat
- casing
- lower casing
- temperature controller
- plastic plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a modification of an insulation dinner pail, comprising a dinner pail body (1), the outside thereof is provided with an insulation shell (2), the insulation shell (2) is composed by connecting an inner layer plastic plate (3) with an outer layer plastic plate (4), foam is filled between the two layers, the inner surface is coated with a metal film. Heat loss is reduced from three aspects of conduction, convection and radiation. Besides, the bottom part of the body (1) is provided with an automatic heating device to keep dishes at a certain temperature, thus dining of user is greatly facilitated.
Description
Technical field
The utility model relates to a kind of improvement of incubation canteen.
Background technology
The existing lunch box of producing, selling and uying all is simple boxes of being made by metal or plastics, and its heat-insulating property is very poor.If people have little time to have a dinner busy delaying, the food that is contained in these ordinary lunch-box will soon cool off, and with having to retrieve heating before the meal, very is trouble.Because known lunch box itself can not heat, and does not have the people of heating appliances at one's side for some, just have to go up the quick-meal stall and have dinner.And during disease transmission, as present SARS period, last quick-meal stall is feared communicate illness again, has safe and sanitary hidden danger.
Summary of the invention
In view of the weak point that above-mentioned prior art exists, the utility model aims to provide and a kind ofly can keep the warm incubation canteen of food for a long time.
The utility model is finished by following mode: the utility model comprises body, is provided with lagging casing in the outside of described body.
Above-mentioned lagging casing is divided into upper casing and lower casing, and both work in coordination upper shield on body, and described upper casing and lower casing connect formation by inside and outside two layers of plastic, and filling is with foamed plastics between described ectonexine plastic plate;
Inner surface at described ectonexine plastic plate all plates layer of metal book film, and the ectonexine plastic plate connects with hasp.
Between the bottom of described body and lower casing, automatic heating apparatus is housed.
Above-mentioned automatic heating apparatus is made up of heat-conducting plate, resistance heating element, temperature controller, outlet, described heat-conducting plate is located at the bottom of body, one end of described resistance heating element and temperature controller are connected and are fixed on the below of heat-conducting plate with lead, by lead resistance heating element and temperature controller are linked to each other with outlet on being located at lower casing again.
Press the incubation canteen of the utility model theme design, simple in structure, simple operation, it is poor effectively to solve existing lunch box heat-insulating property, reduces the loss of heat from conduction, convection current, radiation three aspects, has good heat insulation effect.
Description of drawings
The utility model has the following drawings:
Fig. 1 is a structural representation of the present utility model
The specific embodiment
Accompanying drawing has been represented structure of the present utility model, below in conjunction with embodiment structure of the present utility model and principle is further elaborated.The utility model comprises body 1, is provided with lagging casing 2 in the outside of described body 1.This lagging casing 2 is divided into upper casing 7 and lower casing 8, and both work in coordination upper shield on body 1, and described upper casing 7 and lower casing 8 connect formation by inside and outside two layers of plastic 3,4, can connect with hasp 6, or connect with other draw-in groove modes as shown in Figure 1.Also can be at the inner surface plating layer of metal film of ectonexine plastic plate 3,4, to prevent thermal radiation.Since conduct heat nothing more than conduction, the width of cloth penetrate, three kinds of forms of convection current, in the utility model, plastics are the undesirable heat conductor, a little less than the heat-transfer capability, have reduced conduction loss; Adopt metallic film then to reduce thermal radiation loss; The filling foamed plastics has reduced convection losses; By three aspect combinations, it reaches good heat insulation effect.If the time is long really, food cools down, and still keeps uniform temperature for guaranteeing food, and the utility model also is equipped with automatic heating apparatus between the bottom of described body 1 and lower casing 8.Described automatic heating apparatus is made up of heat-conducting plate 9, resistance heating element 10, temperature controller 11, outlet 12, described heat-conducting plate 9 is located at the bottom of body 1, one end of described resistance heating element 10 and temperature controller 11 usefulness leads are connected and are fixed on the below of heat-conducting plate 9, by lead resistance heating element 10 and temperature controller 11 are linked to each other with outlet 12 on being located at lower casing 8 again.The user connects power supply with outlet 12, under the situation of energising, temperature controller 11 starts, automatically heating apparatus is started working, heat effect by resistance heating element 10, heat is passed on the heat-conducting plate 9, thereby the lunch box body that makes it to contact 1 heats up, the food that is shelved on the inside can remain on tepid state for a long time.Described temperature controller 11 is selected default temperature value, and food will remain on corresponding temperature, to adapt to different people's different demands.The utility model is reasonable in design, easy to operate, can effectively food be remained on tepid state, and can heat voluntarily, and its big wound for current lunch box changes.
Claims (5)
1. an incubation canteen comprises body (1), it is characterized in that: be provided with lagging casing (2) in the outside of described body (1).
2. incubation canteen as claimed in claim 1, it is characterized in that: described lagging casing (2) is divided into upper casing (7) and lower casing (8), both work in coordination upper shield on body (1), described upper casing (7) and lower casing (8) connect formation by inside and outside two layers of plastic (3,4), and filling is with foamed plastics (5) between described ectonexine plastic plate (3,4).
3. incubation canteen as claimed in claim 2 is characterized in that: the inner surface at described ectonexine plastic plate (3,4) all plates layer of metal book film, and ectonexine plastic plate (3,4) connects with hasp (6).
4. as claim 1,2 or 3 described incubation canteens, it is characterized in that: between the bottom of described body (1) and lower casing (8), automatic heating apparatus is housed.
5. incubation canteen as claimed in claim 4, it is characterized in that: described automatic heating apparatus is made up of heat-conducting plate (9), resistance heating element (10), temperature controller (11), outlet (12), described heat-conducting plate (9) is located at the bottom of body (1), one end of described resistance heating element (10) and temperature controller (11) are connected and are fixed on the below of heat-conducting plate (9) with lead, by lead resistance heating element (10) and temperature controller (11) are linked to each other with outlet (12) on being located at lower casing (8) again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265817 CN2631289Y (en) | 2003-05-29 | 2003-05-29 | Thermal lunch boxes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03265817 CN2631289Y (en) | 2003-05-29 | 2003-05-29 | Thermal lunch boxes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2631289Y true CN2631289Y (en) | 2004-08-11 |
Family
ID=34297933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03265817 Expired - Fee Related CN2631289Y (en) | 2003-05-29 | 2003-05-29 | Thermal lunch boxes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2631289Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015042999A1 (en) * | 2013-09-29 | 2015-04-02 | 刘骏涛 | Heat-preservation lunch box |
| CN109250249A (en) * | 2018-10-30 | 2019-01-22 | 王洋 | A kind of recyclable cold chain packing box |
-
2003
- 2003-05-29 CN CN 03265817 patent/CN2631289Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015042999A1 (en) * | 2013-09-29 | 2015-04-02 | 刘骏涛 | Heat-preservation lunch box |
| CN109250249A (en) * | 2018-10-30 | 2019-01-22 | 王洋 | A kind of recyclable cold chain packing box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |